Only in new/debian: 79-libsane1.rules
diff -r -u old/debian/libsane1.install new/debian/libsane1.install
--- old/debian/libsane1.install	2017-08-02 08:37:54.000000000 +0200
+++ new/debian/libsane1.install	2018-01-30 07:25:19.804743255 +0100
@@ -1,2 +1,3 @@
 usr/lib/*/*.so.*
 usr/lib/*/sane/*.so.*
+debian/79-libsane1.rules /lib/udev/rules.d/79-libsane1.rules
diff -r -u old/debian/libsane1.postinst new/debian/libsane1.postinst
--- old/debian/libsane1.postinst	2017-07-15 11:29:06.000000000 +0200
+++ new/debian/libsane1.postinst	2018-01-30 07:20:25.704754454 +0100
@@ -21,6 +21,13 @@
 	    fi
 	fi
     fi
+
+    # These links provide the places most 3rd party driver packages expect
+    # to be able to put their data in
+    ln -sfr /usr/lib64/ /usr/lib/x86_64-linux-gnu 2>/dev/null||true
+    mkdir /usr/lib/x86_64-linux-gnu/sane 2>/dev/null||true
+    ln -sfr /usr/lib/sane /usr/lib/x86_64-linux-gnu/sane 2>/dev/null||true
+    
     ;;
 
     abort-upgrade|abort-remove|abort-deconfigure)